Protocol / connection-first communication
Center2Center has no inbox to flood. Nothing reaches you unless you created the connection it travels on — and you pay only for the conversations you actually have.
The three laws
An address anyone can write to is an address everyone will write to. Email spent thirty years proving it. In Center2Center an unknown sender doesn't land in a folder, a filter, or a quarantine — there is simply no edge for their message to travel on. Silence isn't a setting. It's the physics of the network.
Two centers agree. Keys are exchanged. A channel comes into existence that no third party can enter, read, or borrow. Every connection is a deliberate ceremony — locked, drawn, settled, confirmed — and the map of your network is the map of your consent.
Metered bytes, thread storage, graph compute. No seat licenses, no per-user tiers, no spam subsidy — because spam cannot exist here to be subsidized. Your bill is a mirror of your actual communication, with renewal rules you define yourself.
The visual model
The map draws a hard line between context and permission. Circles that drift close share something — mutual contacts, overlapping work. Only an explicit edge lets a single byte move.
The ceremony
Both circles hold still. Intent is mutual before anything is drawn.
A thin line of light traces itself between the two centers.
The line thickens into a solid, glowing interconnect. Keys are sealed.
Both circles flash once — the channel is live and encrypted end to end.
Usage wallet
Deposit once. Watch it move only when you do. Set your own renewal rules — a monthly top-up, an auto-refill threshold, or a hard cap where the network simply pauses until you decide otherwise.
Who it's for first
Consultants, small agencies, solo operators — firms that bill for their attention and need a clean, trusted record of every client thread. They invite their clients in, and the network grows one trusted circle at a time. No committee required. No cold start.
Under the surface
Rust · Tokio · PostgreSQL. Open relays, peer-to-peer federation, self-hostable — no lock-in by design.
Self-sovereign cryptographic keys. Your address is a public-key hash — did:c2c:… — with no registry to squat.
The permission graph is the access control. Every thread end-to-end encrypted with libsodium.
Your existing email becomes the on-ramp: verified against your graph, signed on the way out, retired at your pace.
Founder beta
Ten to fifteen firms. Real client work. A network where permission comes before messages — from the first one.
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